'use strict';

const fs = require('fs');
const path = require('path');
const Sequelize = require('sequelize');

const basename = path.basename(module.filename);
const env = process.env.NODE_ENV || 'development';
const config = require('../config/config')[env];

const db = {};
let sequelize;

if (config.use_env_variable) {
    sequelize = new Sequelize(process.env[config.use_env_variable]);
} else {
    sequelize = new Sequelize(config.database, config.username, config.password, config);
}

fs.readdirSync(__dirname)
    .filter((file) => file.indexOf('.') !== 0 && file !== basename && file.slice(-3) === '.js')
    .forEach((file) => {
        const model = sequelize.import(path.join(__dirname, file));
        db[model.name] = model;
    });

Object.keys(db).forEach((modelName) => {
    if (db[modelName].associate) {
        db[modelName].associate(db);
    }
});

db.sequelize = sequelize;
db.Sequelize = Sequelize;

module.exports = db;
